Out-of-bounds Read in FreeRDP
Published May 7, 2020
5.9
MEDIUMCVSS 3.1
EPSS 1.71%
Description
In FreeRDP after 1.1 and before 2.0.0, there is an out-of-bounds read in autodetect_recv_bandwidth_measure_results. A malicious server can extract up to 8 bytes of client memory with a manipulated message by providing a short input and reading the measurement result data. This has been patched in 2.0.0.
Affected products
-
- Version > 1.1, < 2.0.0StatusaffectedConstraints-
- Version
Configuration 2
- 18.04
- 19.10
- 20.04
Configuration 3
- 10.0
No data.
Red Hat Enterprise Linux 7
freerdp-0:2.1.1-2.el7
Fixed · RHSA-2020:4031
Red Hat Enterprise Linux 8
freerdp-2:2.1.1-1.el8
Fixed · RHSA-2020:4647
Red Hat Enterprise Linux 8
vinagre-0:3.22.0-23.el8
Fixed · RHSA-2020:4647
Red Hat Enterprise Linux 6
freerdp
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | freerdp-0:2.1.1-2.el7 | Fixed | RHSA-2020:4031 |
| Red Hat Enterprise Linux 8 | freerdp-2:2.1.1-1.el8 | Fixed | RHSA-2020:4647 |
| Red Hat Enterprise Linux 8 | vinagre-0:3.22.0-23.el8 | Fixed | RHSA-2020:4647 |
| Red Hat Enterprise Linux 6 | freerdp | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
1 other source (GitHub) ▾
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/C:P/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.71% (0.01713) | 76.57th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.71% (0.01713) | 76.36th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.80% (0.00799) | 81.84th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.80% (0.00799) | 81.70th | v3 (v2023.03.01) |
| Oct 25, 2023 | 0.80% (0.00799) | 79.70th | v3 (v2023.03.01) |
| Oct 8, 2023 | 0.54% (0.00540) | 74.58th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.46% (0.00460) | 72.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00324) | 66.06th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 14.47% (0.14469) | 91.13th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.50% (0.04504) | 76.47th | v1 |
| Jan 6, 2022 | 4.50% (0.04504) | 76.26th | v1 |
| Jan 5, 2022 | 1.04% (0.01040) | 65.70th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (9)
- https://access.redhat.com/security/cve/CVE-2020-11047 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1835762 Issue Tracking
- https://github.com/FreeRDP/FreeRDP/commit/f5e73cc7c9cd973b516a618da877c87b80950b65 PatchThird Party Advisory
- https://github.com/FreeRDP/FreeRDP/issues/6009 ExploitThird Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9fw6-m2q8-h5pw Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html mailing-listMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-11047
- https://usn.ubuntu.com/4379-1/ vendor-advisoryThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2020-11047
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2020-11047 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1835762 | Issue Tracking | |
| https://github.com/FreeRDP/FreeRDP/commit/f5e73cc7c9cd973b516a618da877c87b80950b65 | PatchThird Party Advisory | |
| https://github.com/FreeRDP/FreeRDP/issues/6009 | ExploitThird Party Advisory | |
| https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9fw6-m2q8-h5pw | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html | mailing-listMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2020-11047 | ||
| https://usn.ubuntu.com/4379-1/ | vendor-advisoryThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2020-11047 |
Change history (0)
No recorded changes yet.